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Finding the Fourth Proportional to 609,796.62, 914,206.50 and 289,787.90

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Solution

The fourth proportional to 609,796.62, 914,206.50 and 289,787.90 is: 434,449.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,796.62 : 914,206.50 = 289,787.90 : x
  2. Step 2: Convert to fraction form
    609,796.62/914,206.50 = 289,787.90/x
  3. Step 3: Cross multiply
    609,796.62x = 914,206.50 × 289,787.90
  4. Step 4: Simplify right side
    609,796.62x = 264,925,977,230.32
  5. Step 5: Solve for x
    x = 264,925,977,230.32/609,796.62
  6. Step 6: Final answer
    x = 434,449.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.